Biomass furnace flue gas emission control system (GECS) for greenhouse carbon dioxide enrichment - I2I phase I

需要使用可再生能源和排放更少污染物的新技术来抵消不断上涨的能源价格和全球环境挑战。一个很有希望的解决方案是使用生物质作为化石燃料的替代品。温室的热量需求很大，主要由不可再生燃料提供，如取暖油、天然气和丙烷。他们还使用丙烷或天然气将二氧化碳浓度提高到1000ppm，以改善植物生长。该提案涉及一个原型废气洗涤系统的商业化，以回收生物质炉烟气中的热量和二氧化碳，供温室使用。生物质炉烟气排放控制系统（GECS）设计、建造并安装在木质颗粒炉（SBI Caddy Alterna）的烟囱上，包括一个刚性箱式空气过滤器，随后是加热元件和催化转换器。空气过滤器去除烟气中的微粒，而加热元件和催化剂将有害气体转化为危害较小的气体。气体分析表明，GECS能够将CO浓度从1100 ppm降至1 ppm以下，将NOx浓度从70 ppm降至5.5 ppm，将SO2浓度从19 ppm降至1 ppm以下。这些水平是令人满意的，因为它们确保了稀释到温室环境空气后人类和植物的安全。烟气的回收有几个明显的好处，因为它增加了炉子的热可用性，并大大提高了温室植物生长的生物质加热系统的二氧化碳回收。

New technologies that use renewable energy sources and emit fewer pollutants are required to offset increasing energy prices and global environmental challenges. A promising solution is through the use of biomass as a replacement for fossil fuels. Greenhouses have a significant heat requirement that is mainly supplied by non-renewable fuels such as heating oil, natural gas and propane. They also use either propane or natural gas to elevate carbon dioxide levels to 1000 ppm for improved plant growth. This proposal addresses the commercialization of a prototype exhaust gas scrubbing system to recover heat and CO2 available in the flue gas of a biomass furnace for use in a greenhouse. The Biomass Furnace Flue Gas Emission Control System (GECS) designed, constructed and installed on the chimney of a wood pellet furnace (SBI Caddy Alterna) consists of a rigid box air filter followed by heating elements and catalytic converters. The air filter removes the particulates present in the flue gas while the heating elements and catalyzers transform the noxious gases into less harmful gases. Gas analysis showed the GECS and was able to reduce CO concentrations from 1100 ppm to less than 1 ppm, NOx from 70 to 5.5 ppm, and SO2 from 19 ppm to less than 1 ppm. These levels are satisfactory since they ensure human and plant safety after dilution into the ambient air of the greenhouse. The recuperation of the flue gas has several obvious benefits since it increases the heat usability of the furnace and it greatly improves the CO2 recovery of biomass heating systems for greenhouse plant growth.